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CAIE IGCSE Chemistry 8.4.2 Transition Elements As Having Ions Questions

Work through real CAIE IGCSE Chemistry questions to determine transition-metal oxidation states and compare their variable-charge chemistry.

Syllabus
2026–2028
Course
Chemistry 0620

Exam points

  • identify variable oxidation states as a characteristic transition-element property
  • use formulae of compounds to determine oxidation states
  • calculate metal ion charges in transition-metal compounds
  • distinguish variable oxidation states from fixed-charge metals and compare transition-metal chemistry

CAIE IGCSE Chemistry 8.4.2 Transition Elements As Having Ions Questions question 1

[Maximum number: 1]

Which statements about transition elements are correct?

1 They have a low density.
2 They form ions with variable oxidation numbers.
3 They have a high melting point.
4 They form only colourless compounds.

A

1 and 2

B

1 and 4

C

2 and 3

D

3 and 4

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